1. Find the mean

Find the geomatric mean between 2 and 8. Please explain how to solve this. Thanks.

2. Originally Posted by IHATECHONGAS
Find the geomatric mean between 2 and 8. Please explain how to solve this. Thanks.
the geometric mean of n terms, is the n-th root of the products of all the temrs

for example:

what is the geometric mean of 1,2,3,4,5

there are 5 terms, so the geometric mean is given by

fifthroot(1*2*3*4*5) = fifthroot(120) or 120^(1/5)

3. Well this is what I got...

2*8 = 16

Sqr. Rt. 16 = 4

4 is the geometric mean...

correct?

4. I'd say 4,55...

5. Originally Posted by whytechocolate01
Well this is what I got...

2*8 = 16

Sqr. Rt. 16 = 4

4 is the geometric mean...

correct?
correct

6. Originally Posted by janvdl
I'd say 4,55...
why do you say that?

7. Shouldn't it be 7root of (2 x 3 x 4 x 5 x 6 x 7 x 8)?

That means:
7th root of (40320)
= 4,549

8. Wow..I had this exact question in a worksheet. IHATECHONGAS i'm wondering if you're in my class...lol

9. Originally Posted by janvdl
Shouldn't it be 7root of (2 x 3 x 4 x 5 x 6 x 7 x 8)?

That means:
7th root of (40320)
= 4,549
well, in that case yeah. but the question never said all numbers between 2 and 8 it just said 2 and 8. that's proably what they meant though, since doing it for just two numbers is kind of trivial

10. Originally Posted by Jhevon
well, in that case yeah. but the question never said all numbers between 2 and 8 it just said 2 and 8. that's proably what they meant though, since doing it for just two numbers is kind of trivial
Oh ok. Thanks for explaining Jhevon.